CVE-2021-0335 Use after free in Android

What is CVE-2021-0335?

CVE-2021-0335 is a medium-severity use after free vulnerability in Google Android, published on 10 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

In process of C2SoftHevcDec.cpp, there is a possible out of bounds write due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-160346309

Weakness: CWE-416

Which versions are affected by CVE-2021-0335?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0335?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-0335 being exploited?

There is no known exploitation of CVE-2021-0335 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as A-160346309, ASB-A-160346309, GHSA-pfm5-3wch-g359.